423553145441 has 2 divisors, whose sum is σ = 423553145442. Its totient is φ = 423553145440.

The previous prime is 423553145437. The next prime is 423553145479. The reversal of 423553145441 is 144541355324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286434758416 + 137118387025 = 535196^2 + 370295^2 .

It is a cyclic number.

It is not a de Polignac number, because 423553145441 - 2² = 423553145437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (423553145341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211776572720 + 211776572721.

It is an arithmetic number, because the mean of its divisors is an integer number (211776572721).

Almost surely, 2^423553145441 is an apocalyptic number.

It is an amenable number.

423553145441 is a deficient number, since it is larger than the sum of its proper divisors (1).

423553145441 is an equidigital number, since it uses as much as digits as its factorization.

423553145441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576000, while the sum is 41.

The spelling of 423553145441 in words is "four hundred twenty-three billion, five hundred fifty-three million, one hundred forty-five thousand, four hundred forty-one".